Maine Medical Center: Portland’s Academic Medical Center

Maine Medical Center, now operating as MaineHealth Maine Medical Center (MHMMC), is the flagship hospital of the MaineHealth integrated health system and the largest medical center in northern New England. Founded in 1874 as Maine General Hospital, the institution has grown from a single pavilion on Bramhall’s Hill in Portland into a 929-licensed-bed, multi-campus academic medical center employing approximately 9,000 care team members. MHMMC operates hospitals in Portland, Biddeford, and Sanford, and serves as Maine’s only Level I Trauma Center, only academic medical center, and home to Maine’s only full-service children’s hospital.

History and Founding

Maine Medical Center traces its origins to February 1868, when the State of Maine incorporated Maine General Hospital, with the first patient admitted on November 9, 1874, in the Italian Gothic pavilion designed by architect Francis Fassett on Bramhall’s Hill in Portland.

Fassett’s original design called for four pavilions around a central administration building. When the hospital opened, only the East pavilion and two outbuildings were complete. By 1892 the West pavilion and Superintendent’s house were finished, and Maine General Hospital had become both an architectural landmark and Portland’s leading medical institution. By 1887, nearly half of its services were provided as charity care, establishing from the outset a commitment to serving patients regardless of financial means.

The 1920s and 1930s brought major clinical expansion, adding X-ray, cardiology, and cancer services, along with a new emergency department. The hospital’s role expanded again after World War II as it grew to serve the postwar healthcare demands of a growing Maine population. In 1969 the Richards Wing opened, adding an 11-story tower with private rooms, a 12-bed cardiac intensive care unit, and a 21-bed special care unit. The L.L. Bean Building, completed in 1984, added more than 200,000 square feet and expanded bed capacity to 598, while creating dedicated surgical units, burn care, and dialysis services.

The original Children’s Hospital, which opened in 1908, and the Maine Eye and Ear Infirmary, which opened in 1890, later merged with Maine General Hospital to form Maine Medical Center. The institution’s parent organization evolved from the Maine Medical Center Foundation into MaineHealth, Maine’s largest integrated health system, in the late 1990s. Maine Medical Center received its first National Institutes of Health research grant in 1962, marking the beginning of a research tradition that has grown into the MaineHealth Institute for Research.

Portland Campus: Level I Trauma Center and Tertiary Care

The Maine Medical Center Portland campus is one of only three Level I Trauma Centers in Northern New England, verified by the American College of Surgeons, treating approximately 88,000 emergency visits and performing more than 27,000 surgeries annually.

The Portland campus serves as the region’s highest-acuity referral center, drawing complex cases from across Maine, New Hampshire, Vermont, and beyond. Its Level I Trauma Center verification requires maintaining 24-hour in-house availability of trauma surgeons, neurosurgeons, and other critical specialists, along with ongoing trauma research and education programs. The campus underwent its largest modernization project in its history between 2018 and 2024, a nearly $600 million investment that expanded the hospital’s bed license from 637 to 700 before the 2024 merger with Southern Maine Health Care further expanded the total licensed bed count to 929.

The Portland campus features a comprehensive stroke center, cardiac and cardiovascular services, medical oncology, obstetrics and gynecology, a 24-hour pharmacy open to the public, and a full-service emergency department. The hospital records approximately 28,000 inpatient visits and 500,000 outpatient visits annually. A community food pantry operates on the Portland campus as part of the institution’s community benefit mission. Free parking is available at the 880 Congress Street garage and the South Lot at 107 Chadwick Street.

Patients and families researching trauma and academic medical center services in the New England region may also find context in the profile of Hurley Medical Center in Flint, Michigan, which similarly combines Level I Trauma designation with a teaching hospital and safety-net mission.

MaineHealth Barbara Bush Children’s Hospital

MaineHealth Barbara Bush Children’s Hospital (MHBBCH), housed within the Portland campus, is Maine’s only full-service children’s hospital, with 116 licensed beds including a Level III NICU, a continuing care nursery, and a Pediatric Intensive Care Unit.

The children’s hospital traces its origins to 1908 and received formal accreditation under the Barbara Bush name in 1998 following a gift from the Bush family. It has been cited among the top 25 children’s hospitals in the United States. The inpatient facility occupies approximately 26,000 square feet within Maine Medical Center Portland. MHBBCH contains 31 Level III Neonatal Intensive Care Unit beds, 20 Level II continuing care nursery beds, and 8 Pediatric Intensive Care Unit beds.

The children’s hospital provides nearly 13,000 pediatric emergency department visits per year and offers specialized services in cancer treatment, cardiology, neonatal care, cystic fibrosis, complex care, and numerous other pediatric subspecialties. It is a designated Cystic Fibrosis Foundation Therapeutic Development Network center, placing it among a nationwide network of clinical research sites for CF drug development. In 2025 MHBBCH celebrated its 30th anniversary as an accredited children’s hospital, marking three decades of serving Maine and eastern New Hampshire’s pediatric population. Funding from the ECHO IDeA States Pediatric Clinical Trials Network has expanded opportunities for children in both states to participate in groundbreaking research.

Maine Medical Center’s Barbara Bush Children’s Hospital is the referral destination for pediatric patients across the entire MaineHealth network, including LincolnHealth in Damariscotta, MaineHealth Pen Bay Hospital in Rockport, and MaineHealth Waldo Hospital in Belfast. Patients transferring from LincolnHealth or other MaineHealth member hospitals can read about those facilities in their respective profiles, including the profile of LincolnHealth in Damariscotta.

Academic Medical Center and Medical Education

Maine Medical Center is Maine’s only academic medical center, primarily affiliated with the Maine Track program at Tufts University School of Medicine, which allows medical students to complete their clinical years in Portland rather than Boston.

The Maine Track at Tufts was established specifically to train physicians who want to practice in Maine, offering second through fourth year of medical school at MMC in Portland. This program directly addresses Maine’s physician workforce needs by training students in the state where they are most likely to remain for practice. Additional academic affiliations include the University of Southern Maine, Saint Joseph’s College, and Dartmouth College.

MHMMC currently supports more than 310 residents and fellows across 15 residency programs, 15 fellowship programs, and 3 rural training tracks, all accredited by the Accreditation Council for Graduate Medical Education (ACGME). The School of Surgical Technology at Maine Medical Center, established in 1969, graduated its 105th class in February 2024, having trained more than 1,110 surgical technicians since its founding. The Advanced Practice Provider Critical Care Residency, launched in 2021, became the first accredited APP residency in Maine and the tenth nationally to receive accreditation through the American Nurses Credentialing Center.

MHMMC Portland has received Magnet Recognition for Nursing Excellence four consecutive times, a designation that reflects the highest standards of nursing practice, patient outcomes, and nursing leadership. The Magnet designation applies to the Portland campus and is among the most rigorous quality recognitions available to hospital nursing departments.

Research: MaineHealth Institute for Research

The MaineHealth Institute for Research, located on the Scarborough campus, is one of 126 NIH-designated Centers for Research Excellence and conducts federally funded bench, clinical, and translational research including work on stem cell biology, chronic Lyme disease, Long COVID, and cancer biomarkers.

The Maine Medical Center Research Institute was established in 1991 to formalize the bench research conducted at Maine Medical Center for decades. A decade later, a dedicated MMCRI facility was built on the Scarborough campus to create a modern environment for multiple research disciplines. The institute received its first NIH grant in 1962 and has grown into a nationally recognized biomedical research center.

Current areas of focus at the MaineHealth Institute for Research include stem and progenitor cell biology and regenerative medicine, Chronic Lyme disease, Long COVID, and a blood-based biomarker test for cancer developed in conjunction with the University of New England that is currently in clinical trials. The institute’s NIH Center for Research Excellence designation places it among a select group of institutions nationally funded for high-priority biomedical research programs. MHMMC also maintains a robust portfolio of ongoing clinical trials, with the Barbara Bush Children’s Hospital’s participation in the ECHO IDeA States Pediatric Clinical Trials Network adding a dedicated pediatric research dimension.

Multi-Campus Operations: Biddeford and Sanford

On June 1, 2024, Southern Maine Health Care in Biddeford and Sanford was integrated under Maine Medical Center’s hospital license, expanding MHMMC to a 929-bed, three-city academic medical center system.

The Biddeford and Sanford campuses operate as community hospitals within the MHMMC structure, offering a range of inpatient services and emergency care for York County residents. The integration reflects a broader MaineHealth strategy of building coordinated care networks that allow patients to access community-level services close to home while retaining pathways to tertiary and quaternary care at the Portland campus.

Southern Maine Health Care was previously the fifth largest healthcare entity in Maine with 179 licensed beds, operating emergency departments in both Biddeford and Sanford along with a multi-specialty physician group. Its merger into MHMMC created economies of scale and clinical alignment that support service expansion across the York County corridor, which has historically faced workforce and access challenges common to rural and semi-rural New England communities.

MaineHealth System and Network Reach

Maine Medical Center is the flagship hospital of MaineHealth, which encompasses 13 hospital and health facilities, more than 2,000 employed providers, and approximately 23,000 care team members serving 1.1 million residents across Maine and New Hampshire.

MaineHealth hospitals in addition to MHMMC include MaineHealth Behavioral Health at Spring Harbor in Westbrook, MaineHealth Franklin Hospital in Farmington, MaineHealth Lincoln Hospital in Damariscotta, MaineHealth Memorial Hospital in North Conway, New Hampshire, MaineHealth Mid Coast Hospital in Brunswick, MaineHealth Pen Bay Hospital in Rockport, MaineHealth Stephens Hospital in Norway, and MaineHealth Waldo Hospital in Belfast. MaineHealth affiliates include MaineGeneral Health in Augusta and Waterville, and St. Mary’s Health System in Lewiston.

System-level resources available through MaineHealth include MaineHealth Behavioral Health in Westbrook, MaineHealth Home Health and Hospice in Saco, the MaineHealth Medical Group, and MaineHealth NorDx laboratory services in Scarborough. According to MaineHealth’s fiscal year 2024 operating metrics, the system recorded 57,717 hospital inpatient discharges, 355,557 inpatient days, 65,943 total surgeries, and 244,416 emergency department visits across its hospital network.

Patients transitioning between MaineHealth community hospitals and Maine Medical Center can find relevant profiles of other network members, including LincolnHealth in Damariscotta, which serves Boothbay Harbor and the Damariscotta River corridor and refers complex cases to the Portland campus.

Accreditation, Recognition, and Contact

Maine Medical Center is accredited by The Joint Commission, has received Magnet Recognition for Nursing Excellence four consecutive times, and has been recognized by U.S. News and World Report for performance in heart care, orthopedics, and gynecology.

The Portland campus is the primary contact point for pre-registration and scheduling. Patients can pre-register for scheduled services by calling 207-662-2433 or toll-free at 1-800-619-9715, Monday through Friday from 7:30 AM to 6:30 PM. Security and parking assistance is available at 207-662-2124. The on-campus pharmacy is open 24 hours per day, seven days per week. MyChart, the MaineHealth patient portal, is available at mychart.mainehealth.org for appointment scheduling, medical records access, and provider messaging.